Systems and methods of real time optimum airflow balancing on rack level airflow constraint

Patent metadata

Field	Value
Publication number	US-9974210-B2
Application number	US-201615138584-A
Country	US
Kind code	B2
Filing date	Apr 26, 2016
Priority date	Apr 26, 2016
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A central information management console provides for real time management of airflow across an information handling system or across multiple information handling systems within one or multiple racks within an environment by estimating and prioritizing the volumetric airflow needs of each information handling system within the environment. Each information handling system or group of information handling systems may be given a priority setting based on one or more criteria and volumetric airflow may be provided based on the priority setting and a selected balancing option. Metrics and sensor readings are received by the central information management console in real time or at intervals to use in determining the amount of volumetric airflow to provide to each information handling system so as to balance volumetric airflow for efficient operation of the environment and to maintain volumetric airflow so as not to exceed a volumetric airflow limit.

First claim

What is claimed is:

1. A method for regulating volumetric airflow in an environment, comprising:
receiving a volumetric airflow limit for a rack within the environment, wherein the rack comprises one or more information handling systems;
receiving one or more balancing options, wherein the one or more balancing options comprise at least one of volumetric airflow sensitivity, equal allocation of volumetric airflow limits, priority based, at least in part, on configurable power range, volumetric airflow scaling based on type of workload, and allocation of volumetric airflow based on a priority setting;
receiving one or more sensor readings from one or more sensors associated with the rack;
receiving one or more metrics from the one or more information handling systems, wherein a fan is associated with each of the one or more information handling systems;
prioritizing each of the one or more information handling systems based, at least in part, on the received one or more balancing options; and
balancing volumetric airflow automatically for the rack, wherein the balancing is based, at least in part, on the prioritization and the received one or more balancing options, and wherein the balancing maintains volumetric airflow within the rack within the volumetric airflow limit.

2. The method of claim 1 , further comprising:
wherein the one or more balancing options comprise volumetric airflow sensitivity;
receiving a volumetric airflow sensitivity reading from the one or more sensors for the one or more information handling systems;
prioritizing the one or more information handling systems based, at least in part, on the volumetric airflow sensitivity reading associated with each of the one or more information handling systems;
determining which of the one or more information handling systems has the highest priority; and
balancing volumetric airflow to the rack by sending one or more instructions to increase power to a fan associated with an information handling system determined to have the highest priority, wherein the increase in power to the fan associated with an information handling system determined to have the highest priority is balanced across the one or more information handling systems so that overall airflow to the rack does not exceed the volumetric airflow limit.

3. The method of claim 1 , further comprising:
wherein the one or more balancing options comprise allocation of volumetric airflow limits;
receiving a volumetric airflow value for each of the one or more information handling systems;
aggregating the received volumetric airflow value associated with each of the one or more information handling systems as a total volumetric airflow;
determining a difference between the volumetric airflow limit and the total volumetric airflow; and
allocating equally the difference across each of the one or more information handling systems, wherein allocating the difference comprises:
reducing power supplied to each fan associated with the one or more information handling systems; and
instructing the one or more information handling systems to implement one or more associated power capping policies.

4. The method of claim 1 , further comprising:
wherein the one or more balancing options comprise priority based on configurable power range;
determining a configurable power range for each of the one or more information handling systems;
allocating a configurable power based priority for each of the one or more information handling systems based, at least in part, on the configurable power range associated with each of the one or more information handling systems; and
allocating volumetric airflow based, at least in part, on the allocated configurable power based priority.

5. The method of claim 1 , further comprising:
wherein the one or more balancing options comprise volumetric scaling based on type of workload;
receiving a type of workload associated with each of the one or more information handling systems;
ranking each type of workload; and
allocating a greater volumetric airflow to at least a first one of the one or more information handling systems than at least a second one of the one or more information handling systems based, at least in part, on the ranking of the type of workload associated with each of the at least a first one of the one or more information handling systems and the at least a second one of the one or more information handling systems.

6. The method of claim 1 , further comprising:
wherein the one or more balancing options comprise allocation of volumetric airflow based on a priority setting;
assigning the one or more information handling systems a priority level, wherein the priority level is based, at least in part, on one or more criteria;
grouping the one or more information handling systems based on the priority level associated with each of the one or more information handling systems;
receiving a volumetric airflow value for each of the one or more information handling systems;
aggregating the received volumetric airflow value associated with each of the one or more information handling systems as a total volumetric airflow;
determining a difference between the volumetric airflow limit and the total volumetric airflow;
reducing power to each fan associated with each information handling system in a lower priority group; and
implementing one or more power capping policies at the each information handling system in the lower priority group.

7. The method of claim 1 , wherein power to a fan associated with a lower priority information handling system is decreased when power is increased to a fan associated with an information handling system determined to have the highest priority to maintain volumetric airflow across the rack that does not exceed the volumetric airflow limit.

8. A system comprising:
a first information handling system;
one or more central processing units for processing information of the first information handling system;
a memory of the first information handling system communicatively coupled to the one or more central processing units; and
one or more modules that comprise instructions stored in the memory, the instructions, when executed by the one or more processing units, operable to perform operations comprising:
receiving a volumetric airflow limit for a rack within the environment, wherein the rack comprises one or more information handling systems;
receiving one or more balancing options, wherein the one or more balancing options comprise at least one of volumetric airflow sensitivity, equal allocation of volumetric airflow limits, priority based on configurable power range, volumetric airflow scaling based on type of workload, and allocation of volumetric airflow based on a priority setting;
receiving one or more sensor readings from one or more sensors associated with the rack;
receiving one or more metrics from the one or more information handling systems, wherein a fan is associated with each of the one or more information handling systems;
prioritizing each of the one or more information handling systems based, at least in part, on the received one or more balancing options; and
balancing volumetric airflow automatically for the rack, wherein the balancing is based, at least in part, on the prioritization and the received one or more balancing options, and wherein the balancing maintains volumetric airflow within the rack within the volumetric airflow limit.

9. The system of claim 8 , the instructions further operable to perform operations comprising:
wherein the one or more balancing options comprise volumetric airflow sensitivity;
receiving a volumetric airflow sensitivity reading from the one or more sensors f

Assignees

• Dell Products Lp

Inventors

• Kunnathur Ragupathi Dinesh
• Shabbir Hasnain
• Lovicott Dominick Adam

Classifications

• H05K7/20736

  within cabinets for removing heat from server blades · CPC title

• H05K7/20818

  within cabinets for removing heat from server blades · CPC title

• H05K7/207 Primary

  Thermal management, e.g. cabinet temperature control · CPC title

• H05K7/20836 Primary

  Thermal management, e.g. server temperature control · CPC title